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【判断题】
测定 DO 的水样可以带回实验室后再加固定剂。A.
正确
B.
错误
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举一反三
【单选题】Even students of average intelce ________ become top students by improving their study habits.
A.
must
B.
can
C.
have to
D.
ought to
【单选题】The second paragraph means that _______.
A.
only students from China study at the top universities
B.
no other students but Japanese and Chinese students study at the top universities
C.
Chinese students often fight against Japanese students
D.
famous universities in the United States attract more Chinese students
【单选题】At the class meeting, some top students introduced several ________ to the study of English. [ ]
A.
approaches
B.
means
C.
metho ds
D.
ways
【单选题】At the class meeting, some top students introduced several ____ to the study of English. [ ]
A.
approaches
B.
ways
C.
means
D.
methods
【简答题】渗透率和渗透系数是描述含水层_____的参数,影响渗透系数大小的主要因素是_____和_____,随着地下水温度的升高,渗透系数_____。
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